Bought this model from Amazon.
<h5 id=”title”><span id=”productTitle”>DROK DC 0-120V 0-100A Digital Multimeter Charge-Discharge Battery Tester, Volt Meter/Ammeter/Watt Meter/Time/Capacity/Electricity Usage Monitor, LCD Color Screen with Overvoltage Protection</span></h5>
Have it mounted and seems to be reading current fine. Doesn’t have useable voltage though. I measure the V-in to Shunt terminal and get 14V and the monitor shows .08V. Have a picture that I can email of wiring and multi meter displaying correct voltage.